From: Eric S Fraga <e.fraga@ucl.ac.uk>
To: emacs-orgmode@gnu.org
Subject: Re: Viewing pdf images
Date: Mon, 10 Apr 2017 18:06:22 +0100 [thread overview]
Message-ID: <877f2s9oq9.fsf@t3610> (raw)
In-Reply-To: <c8efd5b805e447aba02e063b2f4b5327@HE1PR01MB1898.eurprd01.prod.exchangelabs.com> (Eduardo Mercovich's message of "Mon, 10 Apr 2017 16:51:45 +0000")
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On Monday, 10 Apr 2017 at 16:51, Eduardo Mercovich wrote:
> Hi Marvin.
>
>> I also agree that in terms of resolution (pix per inch ) pdf and
>> jpg are the same. However, pdf (and SVG) allow the image to be
>> scaled with little loss in image quality.
>
> Sorry to disagree, but again, pdf images can be vector (like svg)
> and infinitely scaled or raster (bitmap, as a jpg) and in this
> case the quality is on the file. The pdf format only adds and
> envelope around the original jpg image, or in the conversion it
> can be downscaled.
Totally correct.
And, further, pixels per inch (i.e. resolution) is a property of an
output (e.g. printer or screen) or input device (e.g. camera sensor),
not an inherent property of the bitmap image. A bitmap file simply has
a size which can be expressed as pixels x pixels. If you display an
image on a high resolution screen (without scaling) it will appear
smaller than if you display it on a lower resolution screen.
--
: Eric S Fraga (0xFFFCF67D), Emacs 26.0.50, Org release_9.0.5-385-g72fc2d
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prev parent reply other threads:[~2017-04-10 17:38 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-17 12:27 Viewing pdf images Doyley, Marvin M.
[not found] ` <52f1d2ee-b964-39ac-3c96-674ad7b6137e@yahoo.com>
2017-03-17 13:48 ` Doyley, Marvin M.
2017-03-21 10:34 ` Julian M. Burgos
2017-03-22 0:22 ` Doyley, Marvin M.
2017-04-05 3:22 ` Kaushal Modi
2017-04-05 9:21 ` Julian M. Burgos
2017-04-05 11:52 ` Kaushal Modi
2017-04-05 15:23 ` Kaushal Modi
2017-04-06 15:02 ` Julian M. Burgos
2017-04-09 22:06 ` Eduardo Mercovich
2017-04-10 0:00 ` Doyley, Marvin M.
2017-04-10 16:51 ` Eduardo Mercovich
2017-04-12 13:05 ` Doyley, Marvin M.
[not found] ` <c8efd5b805e447aba02e063b2f4b5327@HE1PR01MB1898.eurprd01.prod.exchangelabs.com>
2017-04-10 17:06 ` Eric S Fraga [this message]
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